3) The 512 character limit on user IDs and the 64
character limit on tokens should be understood to mean
as follows: a) No new token (i.e., OPSYS or ERROR-TYPE)
token will be defined that has a length greater than 64

It should say:

3) The 512 character limit on user IDs and the 64
character limit on tokens should be understood to mean
as follows: a) No new token (i.e., OPSYS or ERROR-TYPE)
will be defined that has a length greater than 64